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butalik [34]
3 years ago
9

Solve for a. A= ?????

Mathematics
1 answer:
Degger [83]3 years ago
7 0

Answer:a=3√7

Step-by-step explanation:

c=12

b=9

a=?

------------------------------

c²=a²+b²

a²=c²-b²

a=√c²-b²

a=√12²-9²

a=√144-81

a=√63

a=3√7

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